As I have studied religions for most of my life, as well as alternative religions and philosophies, when I come across something I am not familiar with, I ask. Well, I thought perhaps some kind ATers would share any knowledge they have regarding Celtic and British Mystery Schools and/or the Avalon Mystery School in particular. I always want to know WHERE does any religion, tradition or philosophy get their information from? What references did they start with? To read something is "based" on old ideas doesn't tell me who started this particular group or what references, books, people they base their ideas upon. ATers? Help please?